Turn off dump/emit routines when building minimal subzero.

src/llvm2ice.cpp

 //===- subzero/src/llvm2ice.cpp - Driver for testing ----------------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines a driver that uses LLVM capabilities to parse a
@@ skipping 174 matching lines @@
 
 static int GetReturnValue(int Val) {
   if (AlwaysExitSuccess)
     return 0;
   return Val;
 }
 
 static struct {
   const char *FlagName;
   int FlagValue;
-} ConditionalBuildAttributes[] = {{"text_asm", ALLOW_TEXT_ASM},
-                                  {"dump", ALLOW_DUMP},
+} ConditionalBuildAttributes[] = {{"dump", ALLOW_DUMP},
                                   {"llvm_cl", ALLOW_LLVM_CL},
                                   {"llvm_ir", ALLOW_LLVM_IR},
                                   {"llvm_ir_as_input", ALLOW_LLVM_IR_AS_INPUT},
                                   {"disable_ir_gen", ALLOW_DISABLE_IR_GEN}};
 
 // Validates values of build attributes. Prints them to Stream if
 // Stream is non-null.
 static void ValidateAndGenerateBuildAttributes(raw_os_ostream *Stream) {
 
   if (Stream)
@@ skipping 21 matching lines @@
   }
 }
 
 int main(int argc, char **argv) {
 
   cl::ParseCommandLineOptions(argc, argv);
 
   if (DisableIRGeneration)
     DisableTranslation = true;
 
+  // Don't generate verbose messages if routines
+  // to dump messages are not available.
+  if (!ALLOW_DUMP)
+    VerboseList.clear();
+
   Ice::VerboseMask VMask = Ice::IceV_None;
   for (unsigned i = 0; i != VerboseList.size(); ++i)

[Jim Stichnoth, 2014/11/12 14:34:15]

Might be slightly cleaner to move the ALLOW_DUMP test here?  e.g.

for (unsigned i = 0; ALLOW_DUMP && i != VerboseList.size(); ++i)

[Karl, 2014/11/17 18:59:46]

Done.

     VMask |= VerboseList[i];
 
   std::ofstream Ofs;
   if (OutputFilename != "-") {
     Ofs.open(OutputFilename.c_str(), std::ofstream::out);
   }
   raw_os_ostream *Os =
       new raw_os_ostream(OutputFilename == "-" ? std::cout : Ofs);
   Os->SetUnbuffered();
 
@@ skipping 67 matching lines @@
   if (SubzeroTimingEnabled)
     Ctx.dumpTimers();
   if (TimeEachFunction) {
     const bool DumpCumulative = false;
     Ctx.dumpTimers(Ice::GlobalContext::TSK_Funcs, DumpCumulative);
   }
   const bool FinalStats = true;
   Ctx.dumpStats("_FINAL_", FinalStats);
   return GetReturnValue(ErrorStatus);
 }